Heap-based buffer overflow in enhance.c in ImageMagick before 7.0.6-6 allows remote attackers to cause a denial of service via a crafted file.
https://security.gentoo.org/glsa/201711-07
https://github.com/ImageMagick/ImageMagick/commit/1cc6f0ccc92c20c7cab6c4a7335daf29c91f0d8e